vcl/source/gdi/impanmvw.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <memory>
  21 #include <impanmvw.hxx>
  22
  23 #include <vcl/virdev.hxx>
  24 #include <vcl/window.hxx>
  25 #include <tools/helpers.hxx>
  26
  27 #include <window.h>
  28
  29 ImplAnimView::ImplAnimView( Animation* pParent, OutputDevice* pOut,
  30                             const Point& rPt, const Size& rSz,
  31                             sal_uLong nExtraData,
  32                             OutputDevice* pFirstFrameOutDev ) :
  33         mpParent        ( pParent ),
  34         mpRenderContext ( pFirstFrameOutDev ? pFirstFrameOutDev : pOut ),
  35         mnExtraData     ( nExtraData ),
  36         maPt            ( rPt ),
  37         maSz            ( rSz ),
  38         maSzPix         ( mpRenderContext->LogicToPixel( maSz ) ),
  39         maClip          ( mpRenderContext->GetClipRegion() ),
  40         mpBackground    ( VclPtr<VirtualDevice>::Create() ),
  41         mpRestore       ( VclPtr<VirtualDevice>::Create() ),
  42         meLastDisposal  ( Disposal::Back ),
  43         mbIsPaused      ( false ),
  44         mbIsMarked      ( false ),
  45         mbIsMirroredHorizontally         ( maSz.Width() < 0 ),
  46         mbIsMirroredVertically         ( maSz.Height() < 0 )
  47 {
  48     Animation::ImplIncAnimCount();
  49
  50     // Mirrored horizontally?
  51     if( mbIsMirroredHorizontally )
  52     {
  53         maDispPt.setX( maPt.X() + maSz.Width() + 1 );
  54         maDispSz.setWidth( -maSz.Width() );
  55         maSzPix.setWidth( -maSzPix.Width() );
  56     }
  57     else
  58     {
  59         maDispPt.setX( maPt.X() );
  60         maDispSz.setWidth( maSz.Width() );
  61     }
  62
  63     // Mirrored vertically?
  64     if( mbIsMirroredVertically )
  65     {
  66         maDispPt.setY( maPt.Y() + maSz.Height() + 1 );
  67         maDispSz.setHeight( -maSz.Height() );
  68         maSzPix.setHeight( -maSzPix.Height() );
  69     }
  70     else
  71     {
  72         maDispPt.setY( maPt.Y() );
  73         maDispSz.setHeight( maSz.Height() );
  74     }
  75
  76     // save background
  77     mpBackground->SetOutputSizePixel( maSzPix );
  78     mpRenderContext->SaveBackground(*mpBackground, maDispPt, maDispSz, maSzPix);
  79
  80     // Initialize drawing to actual position
  81     drawToPos( mpParent->ImplGetCurPos() );
  82
  83     // If first frame OutputDevice is set, update variables now for real OutputDevice
  84     if( pFirstFrameOutDev )
  85     {
  86         mpRenderContext = pOut;
  87         maClip = mpRenderContext->GetClipRegion();
  88     }
  89 }
  90
  91 ImplAnimView::~ImplAnimView()
  92 {
  93     mpBackground.disposeAndClear();
  94     mpRestore.disposeAndClear();
  95
  96     Animation::ImplDecAnimCount();
  97 }
  98
  99 bool ImplAnimView::matches( OutputDevice* pOut, long nExtraData ) const
 100 {
 101     bool bRet = false;
 102
 103     if( nExtraData )
 104     {
 105         if( ( mnExtraData == nExtraData ) && ( !pOut || ( pOut == mpRenderContext ) ) )
 106             bRet = true;
 107     }
 108     else if( !pOut || ( pOut == mpRenderContext ) )
 109         bRet = true;
 110
 111     return bRet;
 112 }
 113
 114 void ImplAnimView::getPosSize( const AnimationBitmap& rAnimationBitmap, Point& rPosPix, Size& rSizePix )
 115 {
 116     const Size& rAnmSize = mpParent->GetDisplaySizePixel();
 117     Point       aPt2( rAnimationBitmap.maPositionPixel.X() + rAnimationBitmap.maSizePixel.Width() - 1,
 118                       rAnimationBitmap.maPositionPixel.Y() + rAnimationBitmap.maSizePixel.Height() - 1 );
 119     double      fFactX, fFactY;
 120
 121     // calculate x scaling
 122     if( rAnmSize.Width() > 1 )
 123         fFactX = static_cast<double>( maSzPix.Width() - 1 ) / ( rAnmSize.Width() - 1 );
 124     else
 125         fFactX = 1.0;
 126
 127     // calculate y scaling
 128     if( rAnmSize.Height() > 1 )
 129         fFactY = static_cast<double>( maSzPix.Height() - 1 ) / ( rAnmSize.Height() - 1 );
 130     else
 131         fFactY = 1.0;
 132
 133     rPosPix.setX( FRound( rAnimationBitmap.maPositionPixel.X() * fFactX ) );
 134     rPosPix.setY( FRound( rAnimationBitmap.maPositionPixel.Y() * fFactY ) );
 135
 136     aPt2.setX( FRound( aPt2.X() * fFactX ) );
 137     aPt2.setY( FRound( aPt2.Y() * fFactY ) );
 138
 139     rSizePix.setWidth( aPt2.X() - rPosPix.X() + 1 );
 140     rSizePix.setHeight( aPt2.Y() - rPosPix.Y() + 1 );
 141
 142     // Mirrored horizontally?
 143     if( mbIsMirroredHorizontally )
 144         rPosPix.setX( maSzPix.Width() - 1 - aPt2.X() );
 145
 146     // Mirrored vertically?
 147     if( mbIsMirroredVertically )
 148         rPosPix.setY( maSzPix.Height() - 1 - aPt2.Y() );
 149 }
 150
 151 void ImplAnimView::drawToPos( sal_uLong nPos )
 152 {
 153     VclPtr<vcl::RenderContext> pRenderContext = mpRenderContext;
 154
 155     std::unique_ptr<PaintBufferGuard> pGuard;
 156     if (mpRenderContext->GetOutDevType() == OUTDEV_WINDOW)
 157     {
 158         vcl::Window* pWindow = static_cast<vcl::Window*>(mpRenderContext.get());
 159         pGuard.reset(new PaintBufferGuard(pWindow->ImplGetWindowImpl()->mpFrameData, pWindow));
 160         pRenderContext = pGuard->GetRenderContext();
 161     }
 162
 163     ScopedVclPtrInstance<VirtualDevice> aVDev;
 164     std::unique_ptr<vcl::Region> xOldClip(!maClip.IsNull() ? new vcl::Region( pRenderContext->GetClipRegion() ) : nullptr);
 165
 166     aVDev->SetOutputSizePixel( maSzPix, false );
 167     nPos = std::min( nPos, static_cast<sal_uLong>(mpParent->Count()) - 1 );
 168
 169     for( sal_uLong i = 0; i <= nPos; i++ )
 170         draw( i, aVDev.get() );
 171
 172     if (xOldClip)
 173         pRenderContext->SetClipRegion( maClip );
 174
 175     pRenderContext->DrawOutDev( maDispPt, maDispSz, Point(), maSzPix, *aVDev );
 176     if (pGuard)
 177         pGuard->SetPaintRect(tools::Rectangle(maDispPt, maDispSz));
 178
 179     if (xOldClip)
 180         pRenderContext->SetClipRegion(*xOldClip);
 181 }
 182
 183 void ImplAnimView::draw( sal_uLong nPos, VirtualDevice* pVDev )
 184 {
 185     VclPtr<vcl::RenderContext> pRenderContext = mpRenderContext;
 186
 187     std::unique_ptr<PaintBufferGuard> pGuard;
 188     if (!pVDev && mpRenderContext->GetOutDevType() == OUTDEV_WINDOW)
 189     {
 190         vcl::Window* pWindow = static_cast<vcl::Window*>(mpRenderContext.get());
 191         pGuard.reset(new PaintBufferGuard(pWindow->ImplGetWindowImpl()->mpFrameData, pWindow));
 192         pRenderContext = pGuard->GetRenderContext();
 193     }
 194
 195     tools::Rectangle aOutRect( pRenderContext->PixelToLogic( Point() ), pRenderContext->GetOutputSize() );
 196
 197     // check, if output lies out of display
 198     if( aOutRect.Intersection( tools::Rectangle( maDispPt, maDispSz ) ).IsEmpty() )
 199         setMarked( true );
 200     else if( !mbIsPaused )
 201     {
 202         VclPtr<VirtualDevice>   pDev;
 203         Point                   aPosPix;
 204         Point                   aBmpPosPix;
 205         Size                    aSizePix;
 206         Size                    aBmpSizePix;
 207         const sal_uLong             nLastPos = mpParent->Count() - 1;
 208         mnActPos = std::min( nPos, nLastPos );
 209         const AnimationBitmap&  rAnimationBitmap = mpParent->Get( static_cast<sal_uInt16>( mnActPos ) );
 210
 211         getPosSize( rAnimationBitmap, aPosPix, aSizePix );
 212
 213         // Mirrored horizontally?
 214         if( mbIsMirroredHorizontally )
 215         {
 216             aBmpPosPix.setX( aPosPix.X() + aSizePix.Width() - 1 );
 217             aBmpSizePix.setWidth( -aSizePix.Width() );
 218         }
 219         else
 220         {
 221             aBmpPosPix.setX( aPosPix.X() );
 222             aBmpSizePix.setWidth( aSizePix.Width() );
 223         }
 224
 225         // Mirrored vertically?
 226         if( mbIsMirroredVertically )
 227         {
 228             aBmpPosPix.setY( aPosPix.Y() + aSizePix.Height() - 1 );
 229             aBmpSizePix.setHeight( -aSizePix.Height() );
 230         }
 231         else
 232         {
 233             aBmpPosPix.setY( aPosPix.Y() );
 234             aBmpSizePix.setHeight( aSizePix.Height() );
 235         }
 236
 237         // get output device
 238         if( !pVDev )
 239         {
 240             pDev = VclPtr<VirtualDevice>::Create();
 241             pDev->SetOutputSizePixel( maSzPix, false );
 242             pDev->DrawOutDev( Point(), maSzPix, maDispPt, maDispSz, *pRenderContext );
 243         }
 244         else
 245             pDev = pVDev;
 246
 247         // restore background after each run
 248         if( !nPos )
 249         {
 250             meLastDisposal = Disposal::Back;
 251             maRestPt = Point();
 252             maRestSz = maSzPix;
 253         }
 254
 255         // restore
 256         if( ( Disposal::Not != meLastDisposal ) && maRestSz.Width() && maRestSz.Height() )
 257         {
 258             if( Disposal::Back == meLastDisposal )
 259                 pDev->DrawOutDev( maRestPt, maRestSz, maRestPt, maRestSz, *mpBackground );
 260             else
 261                 pDev->DrawOutDev( maRestPt, maRestSz, Point(), maRestSz, *mpRestore );
 262         }
 263
 264         meLastDisposal = rAnimationBitmap.meDisposal;
 265         maRestPt = aPosPix;
 266         maRestSz = aSizePix;
 267
 268         // What do we need to restore the next time?
 269         // Put it into a bitmap if needed, else delete
 270         // SaveBitmap to conserve memory
 271         if( ( meLastDisposal == Disposal::Back ) || ( meLastDisposal == Disposal::Not ) )
 272             mpRestore->SetOutputSizePixel( Size( 1, 1 ), false );
 273         else
 274         {
 275             mpRestore->SetOutputSizePixel( maRestSz, false );
 276             mpRestore->DrawOutDev( Point(), maRestSz, aPosPix, aSizePix, *pDev );
 277         }
 278
 279         pDev->DrawBitmapEx( aBmpPosPix, aBmpSizePix, rAnimationBitmap.maBitmapEx );
 280
 281         if( !pVDev )
 282         {
 283             std::unique_ptr<vcl::Region> xOldClip(!maClip.IsNull() ? new vcl::Region( pRenderContext->GetClipRegion() ) : nullptr);
 284
 285             if (xOldClip)
 286                 pRenderContext->SetClipRegion( maClip );
 287
 288             pRenderContext->DrawOutDev( maDispPt, maDispSz, Point(), maSzPix, *pDev );
 289             if (pGuard)
 290                 pGuard->SetPaintRect(tools::Rectangle(maDispPt, maDispSz));
 291
 292             if( xOldClip)
 293             {
 294                 pRenderContext->SetClipRegion(*xOldClip);
 295                 xOldClip.reset();
 296             }
 297
 298             pDev.disposeAndClear();
 299
 300             if( pRenderContext->GetOutDevType() == OUTDEV_WINDOW )
 301                 static_cast<vcl::Window*>( pRenderContext.get() )->Flush();
 302         }
 303     }
 304 }
 305
 306 void ImplAnimView::repaint()
 307 {
 308     const bool bOldPause = mbIsPaused;
 309
 310     mpRenderContext->SaveBackground(*mpBackground, maDispPt, maDispSz, maSzPix);
 311
 312     mbIsPaused = false;
 313     drawToPos( mnActPos );
 314     mbIsPaused = bOldPause;
 315 }
 316
 317 AInfo* ImplAnimView::createAInfo() const
 318 {
 319     AInfo* pAInfo = new AInfo;
 320
 321     pAInfo->aStartOrg = maPt;
 322     pAInfo->aStartSize = maSz;
 323     pAInfo->pOutDev = mpRenderContext;
 324     pAInfo->pViewData = const_cast<ImplAnimView *>(this);
 325     pAInfo->nExtraData = mnExtraData;
 326     pAInfo->bPause = mbIsPaused;
 327
 328     return pAInfo;
 329 }
 330
 331 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */